86662417 has 2 divisors, whose sum is σ = 86662418. Its totient is φ = 86662416.

The previous prime is 86662393. The next prime is 86662427. The reversal of 86662417 is 71426668.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81649296 + 5013121 = 9036^2 + 2239^2 .

It is a cyclic number.

It is not a de Polignac number, because 86662417 - 2¹¹ = 86660369 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86662417.

It is not a weakly prime, because it can be changed into another prime (86662427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43331208 + 43331209.

It is an arithmetic number, because the mean of its divisors is an integer number (43331209).

Almost surely, 2^86662417 is an apocalyptic number.

It is an amenable number.

86662417 is a deficient number, since it is larger than the sum of its proper divisors (1).

86662417 is an equidigital number, since it uses as much as digits as its factorization.

86662417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 40.

The square root of 86662417 is about 9309.2651160014. The cubic root of 86662417 is about 442.5308980733.

The spelling of 86662417 in words is "eighty-six million, six hundred sixty-two thousand, four hundred seventeen".